Cat heat stroke usually takes about half a day to a day to recover naturally. If the cat has severe heat stroke, it needs to be sent to a pet hospital for treatment, otherwise it may easily cause life danger. When a cat suffers from heat stroke, it is necessary to move the cat to a cool place, and at the same time help the cat cool down, replenish the cat with water, and prevent the cat from dehydration. You can turn on the air conditioner or electric fan for the cat, but be careful to prevent the cat from catching a cold.